ISSN:
1572-901X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary The reaction between the title compound, α,β,γ,δ-tetra(p-sulphonatophenyl)porphynatoaquacarbonylruthenate(II), [Ru(TPPS)(CO)(H2O)]4−, and CN- revealed that only the aqua ligand is substituted even in the presence of a large excess of the nucleophile. The pK a1 was spectrophotometrically determined as 13.4(5) (at 33.2 °C) and kinetically as 13.44(5) (at 33.6 °C). The rate of aqua substitution was determined as 89(4)m −1 s −1 at 35.1 °C and the activation enthalpy and entropy as 55.44(1) kJ mol−1 and-27.90(4) J K−1 mol−1, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00166019
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